Researchers are developing a plethora of new wireless services that broadly fall into three categories: information retrieval, mobile commerce, and general communications. <p>Although 3G services are still under development, these researchers are already exploring the architectural needs of next-generation wireless services. Compound wireless services will let users combine different types of services to carry out specialized, elaborate functions. These services could substantially increase the use of wireless telecommunications, but they must meet certain requirements to be successful.</p>